class RuboCop::Cop::Style::LambdaCall
This cop checks for use of the lambda.(args) syntax.
@example
# bad lambda.(x, y) # good lambda.call(x, y)
Public Instance Methods
on_send(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 18 def on_send(node) _receiver, selector, = *node # we care only about `call` methods return unless selector == :call if offense?(node) add_offense(node, :expression) { opposite_style_detected } else correct_style_detected end end
Private Instance Methods
autocorrect(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 39 def autocorrect(node) lambda do |corrector| if style == :call receiver_node, = *node receiver = receiver_node.source replacement = node.source.sub("#{receiver}.", "#{receiver}.call") corrector.replace(node.source_range, replacement) else corrector.remove(node.loc.selector) end end end
message(_node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 52 def message(_node) if style == :call 'Prefer the use of `lambda.call(...)` over `lambda.(...)`.' else 'Prefer the use of `lambda.(...)` over `lambda.call(...)`.' end end
offense?(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 33 def offense?(node) # lambda.() does not have a selector style == :call && node.loc.selector.nil? || style == :braces && node.loc.selector end